Townsend C R; Begon M; Harper J L <br/><br/>
Essentials of ecology 

<br/><br/><label>ISBN: </label>SL01288273 
<br/><br/><label>Standard No.: </label>195993 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Dewey Class. No.: </label>G:5, P0;P3